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Science Museum Group
© The Board of Trustees of the Science Museum
Two screws, 10mm long, sherardized by Cowper Coles in the 1920s.
Details
- Category:
- Metallurgy
- Object Number:
- 2002-174
- Materials:
- metal (unknown)
- Measurements:
-
: .3937 in.; 10 mm
- type:
- two sherardized screws
- credit:
- Mr. Peter Cowper-Coles.
